package ThreadPool;

import java.util.concurrent.Callable;
        //1.让这个类实现Callable接口
public class MyCallable implements Callable<String> {

    private int n;
    public MyCallable(int n) {
        this.n = n;
    }
    //2.重写call方法
    @Override
    public String call() throws Exception {
        //描述线程的任务，返回线程执行返回后的结果
        //需求：求1-n的和返回
    int sum = 0;
        for (int i = 1; i <=n; i++) {
            sum += i;
        }

        return Thread.currentThread().getName()+"求出了1~"+n+"的和为"+sum;
    }
}
